- Ibn ʻAllān, Muḥammad ʻAlī ibn Muḥammad, 1588-1648. Ḥusn al-ʻibārah fī naẓm al-istiʻārah1
- Ibn ʻUmrān, Muḥammad ibn Mūsá, 1392-14691
- Ibn Ḥajar al-Haythamī, Aḥmad ibn Muḥammad, approximately 1503-approximately 1566. Fatḥ al-mubīn li-sharḥ al-Arbaʻīn1
- Ibn Ḥajar al-Haythamī, Aḥmad ibn Muḥammad, approximately 1503-approximately 1566. Iʻlām bi-qawāṭiʻ al-Islām1
- Ibn Ḥajar al-ʻAsqalānī, Aḥmad ibn ʻAlī, 1372-1449. Nuzʹhat al-naẓar fī tawḍīḥ Nukhbat al-fikar1
- Illegible markings1
- Illumination of books and manuscripts1
- Illustrated works1
- Imams (Shiites)1
- Indexes1
- India1
- Inheritance and succession (Islamic law)10
- Inquisition1
- Inscriptions18
- Insertions (Production)2
- Intellectual life1
- Interest (Jewish law)1
- Interfaith relations2
- Interpersonal relations--Religious aspects--Islam1
- Iran--Qazvīn1